atari road runer audio problems/questions.

mrbill2084

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a buddy of mine brought over his road runner. It has very weak audio out of the right channel with a constant low hum. I thought I would check the speakers and 1 was 8 ohm and 1 was 4 ohm. I swapped the speakers and the weak audio stayed on the right side.

I know your not supposed to mix speakers. could that have damaged the ARIII? Someone worked on that ARIII before (large board). Its labeled that 2 tda 2002 and 2 47ou 25v caps were added to r14 anf r15.

I found a spare ARIII but its missing the volume and test switch(I assume its from system 2 not system 1). Anyone know if I add a volume pot and a test switch to the System 2 ARIII, and use it in system 1?

ANy chance its a problem with the main board?
 
Last edited:
update:
replaced the 4 ohm speaker with an 8 ohm. Got another audio reg III, dropped it in, and sound is fine. Problem is in the ARIII. Probably not worth trying to figure it out..
 
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